Silicon−Carbon Unsaturated Compounds. 65. Thermal and Photochemical Isomerization of Trimethylsiloxy- and Bis(trimethylsilyl)-Substituted Silacyclobut-3-enes

Silicon−Carbon Unsaturated Compounds. 65. Thermal and Photochemical Isomerization of Trimethylsiloxy- and Bis(trimethylsilyl)-Substituted Silacyclobut-3-enes

Heating silacyclobut-3-ene 2 at 250 °C afforded the trans-silacyclobut-3-ene 4, via the silyl-substituted cycloprop-2-ene 3. The photolysis of 4 gave a 1:1 mixture of 4 and the cis isomer 6, which was transformed into 4 at 250 °C, quantitatively. Preliminary results of the theoretical treatment for...

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Veröffentlicht in:Organometallics 2002-05, Vol.21 (10), p.2033-2035
Hauptverfasser: Naka, Akinobu, Ikadai, Junnai, Motoike, Shingo, Yoshizawa, Kazunari, Kondo, Yoshimasa, Kang, Song-Yun, Ishikawa, Mitsuo
Format: Artikel
Sprache:eng
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Zusammenfassung:Heating silacyclobut-3-ene 2 at 250 °C afforded the trans-silacyclobut-3-ene 4, via the silyl-substituted cycloprop-2-ene 3. The photolysis of 4 gave a 1:1 mixture of 4 and the cis isomer 6, which was transformed into 4 at 250 °C, quantitatively. Preliminary results of the theoretical treatment for the isomerization of 2‘ to 3‘ are described.
ISSN:0276-7333
1520-6041
DOI:10.1021/om020001v